We should trust our experience in trading even though the situations got worst, and I don't think panic selling is the solution. What will happen to your future profit if you sell it all due to you're panicked? That's why we should stay stronger and keep the faith burning so we could stand against negative speculators.
I lile your advice that is the best thing all the traders should do, especially for all of those newbie in trading, we should always trust our coin and wait until the market recover again before we sell all our coins, this strategy will help us te get more income.